Blog

The greater the power, the more likely we are to correctly reject the null hypothesis, if it is incorrect.

A researcher wants to know the probability of selecting a student athlete from a school population where 5% of students are athletes. If the researcher selects a sample of 120 students, is it appropriate to use the normal approximation of the binomial distribution to estimate this probability?

A researcher measures mating displays among 12 birds randomly assigned to be in the presence of no cue, an auditory cue, or a visual cue. The degrees of freedom for this one-way between-subjects ANOVA are 2 and 9.

A researcher selects a sample of nine participants from a population with a mean of 8 and a standard deviation of 3. About 14% of the sample means in this sampling distribution should be between a sample mean of ______.

It is appropriate to use the normal approximation of the binomial distribution with a sample of 100 participants, where p = .07 and q = .93.

If all scores in a distribution are negative values, then the standard deviation will also be a negative value.

Following the steps to hypothesis testing allows researchers to make decisions about parameters in a sample using statistics measured in a population.

Which of the following includes the countries that favor individualistic-oriented cultures?

A sampling distribution is a distribution of scores in a population.

Based on the effect size conventions, d = 0.18 is a ______.